Easy to move between frets No more scratches in your instrument It stays in tune with a perfect intonation Make Fast Changes on Stage! Easily applied and adjusted with one hand Material: Steel EASY TO MOVE - Super Fast to Change Between Frets. It Fits Perfectly Electric and Acoustic Guitars, Ukulele, Banjo, Folk Guitars and Mandolin NO SCRATCHES OR FRET BUZZ- High Quality Silicone Pad Will Protect Your Instrument Against Damage. Steel Spring with Internal Memory. It Puts Just Enough Pressure on the Instrument HIGH PERFORMANCE - Stays in Tune with a Great Intonation in All Frets. Brand GuitarShop SKU GU262EL09XUSKNAFAMZ-264733